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RS-232/RS-485 Transceivers. ISL3332 Datasheet

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RS-232/RS-485 Transceivers. ISL3332 Datasheet






ISL3332 Transceivers. Datasheet pdf. Equivalent




ISL3332 Transceivers. Datasheet pdf. Equivalent





Part

ISL3332

Description

Dual Protocol (RS-232/RS-485) Transceivers



Feature


DATASHEET ISL3332, ISL3333 3.3V, ±15kV ESD Protected, Two Port, Dual Protocol (RS-232/RS-485) Transceivers FN6362 R ev 0.00 May 27, 2008 The ISL3332, ISL3 333 are two port interface ICs where ea ch port can be independently configured as a single RS-485/422 transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transcei ver. With both ports set to the same mo de, two RS-485/RS-4.
Manufacture

Renesas

Datasheet
Download ISL3332 Datasheet


Renesas ISL3332

ISL3332; 22 transceivers, or four RS-232 transcei vers are available. If either port is i n RS-232 mode, the onboard charge pump generates RS-232 compliant 5V Tx out put levels from a single VCC supply as low as 3.15V. The transceivers are RS-2 32 compliant, with the Rx inputs handli ng up to 25V. In RS-485 mode, the tr ansceivers support both the RS-485 and RS-422 differential co.


Renesas ISL3332

mmunication standards. The receivers fea ture "full failsafe" operation, so the Rx outputs remain in a high state if th e inputs are open or shorted together. The transmitters support up to three da ta rates, two of which are slew rate li mited for problem fr .


Renesas ISL3332

.

Part

ISL3332

Description

Dual Protocol (RS-232/RS-485) Transceivers



Feature


DATASHEET ISL3332, ISL3333 3.3V, ±15kV ESD Protected, Two Port, Dual Protocol (RS-232/RS-485) Transceivers FN6362 R ev 0.00 May 27, 2008 The ISL3332, ISL3 333 are two port interface ICs where ea ch port can be independently configured as a single RS-485/422 transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transcei ver. With both ports set to the same mo de, two RS-485/RS-4.
Manufacture

Renesas

Datasheet
Download ISL3332 Datasheet




 ISL3332
DATASHEET
ISL3332, ISL3333
3.3V, ±15kV ESD Protected, Two Port, Dual Protocol (RS-232/RS-485)
Transceivers
FN6362
Rev 0.00
May 27, 2008
The ISL3332, ISL3333 are two port interface ICs where each
port can be independently configured as a single
RS-485/422 transceiver, or as a dual (2 Tx, 2 Rx) RS-232
transceiver. With both ports set to the same mode, two
RS-485/RS-422 transceivers, or four RS-232 transceivers
are available.
If either port is in RS-232 mode, the onboard charge pump
generates RS-232 compliant 5V Tx output levels from a
single VCC supply as low as 3.15V. The transceivers are
RS-232 compliant, with the Rx inputs handling up to 25V.
In RS-485 mode, the transceivers support both the RS-485
and RS-422 differential communication standards. The
receivers feature "full failsafe" operation, so the Rx outputs
remain in a high state if the inputs are open or shorted
together. The transmitters support up to three data rates, two
of which are slew rate limited for problem free
communications. The charge pump disables when both
ports are in RS-485 mode, thereby saving power, minimizing
noise, and eliminating the charge pump capacitors.
Both RS-232 and RS-485 modes feature loopback and
shutdown functions. Loopback internally connects the Tx
outputs to the corresponding Rx input, to facilitate board
level self test implementation. The outputs remain connected
to the loads during loopback, so connection problems (e.g.,
shorted connectors or cables) can be detected. Shutdown
mode disables the Tx and Rx outputs, disables the charge
pumps, and places the IC in a low current (35µA) mode.
Features
15kV (HBM) ESD Protected Bus Pins (RS-232 or
RS-485)
• Operates From a Single 3.3V Supply
• Two Independent Ports, Each User Selectable for RS-232
(2 Transceivers) or RS-485/RS-422 (1 Transceiver)
• True Flow-Through Pinouts Simplify Board Layouts
• Pb-free (RoHS compliant)
• Full Failsafe (Open/Short) Rx in RS-485/422 Mode
• Loopback Mode Facilitates Board Self Test Functions
• User Selectable RS-485 Data Rates (ISL3333 Only)
- Fast Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Mbps
- Slew Rate Limited. . . . . . . . . . . . . . . . . . . . . . . 460kbps
- Slew Rate Limited. . . . . . . . . . . . . . . . . . . . . . . 115kbps
• Fast RS-232 Data Rate . . . . . . . . . . . . . . . Up to 400kbps
• RS-232 Tx and Rx Enable Pins (ISL3333 Only)
• Small Charge Pump Caps . . . . . . . . . . . . . . . . . 4 x 0.1µF
• Low Current Shutdown Mode. . . . . . . . . . . . . . . . . . .35µA
• QFN Package Saves Board Space (ISL3333 Only)
• Logic Supply Pin (VL) Eases Operation in Mixed Supply
Systems (ISL3333 Only)
Applications
The ISL3333 is a QFN packaged device that includes two
additional user selectable, lower speed and edge rate
options for EMI sensitive designs, or to allow longer bus
lengths. It also features a logic supply pin (VL) that sets the
VOH level of logic outputs, and the switching points of logic
inputs, to be compatible with another supply voltage in mixed
voltage systems. The QFN also adds RS-232 mode Tx EN
pins (DEN), and active low Rx enable pins (RXEN) to
increase design flexibility. In RS-485 applications, active low
Rx enable pins allow Tx/Rx direction control, via a single
signal per port, by connecting the corresponding DE and
RXEN pins together.
• Gaming Applications (e.g., Slot Machines)
• Single Board Computers
• Factory Automation
• Security Networks
• Industrial/Process Control Networks
• Level Translators (e.g., RS-232 to RS-422)
• Point of Sale Equipment
• Dual Channel RS-485 Interfaces
For a single port version of these devices, please see the
ISL3330, ISL3331 data sheet.
TABLE 1. SUMMARY OF FEATURES
NO. OF
PART NUMBER PORTS PACKAGE OPTIONS
ISL3332
2 28 Ld SSOP
RS-485 DATA
RATE (bps)
20M
RS-232 DATA
RATE (kbps) VL PIN?
400 NO
RS-232 Tx
ENABLE?
NO
ACTIVE H or L LOW POWER
Rx ENABLE? SHUTDOWN?
NONE
YES
ISL3333
2 40 Ld QFN (6 x 6mm) 20M, 460k, 115k
400
YES
YES
L
YES
FN6362 Rev 0.00
May 27, 2008
Page 1 of 26




 ISL3332
ISL3332, ISL3333
Ordering Information
PART NUMBER
(NOTE)
PART MARKING
TEMP. RANGE
(°C)
PACKAGE
(Pb-Free)
PKG. DWG. #
ISL3332IAZ*
3332 IAZ
-40 to +85
28 Ld SSOP
M28.209
ISL3333IRZ*
3333 IRZ
-40 to +85
40 Ld QFN
L40.6x6
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations).
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J
STD-020.
Pinouts
ISL3332 (28 LD SSOP)
TOP VIEW
ISL3333 (40 LD QFN)
TOP VIEW
C1+ 1
C1- 2
V+ 3
A1 4
B1 5
Y1 6
Z1 7
SEL1 8
SEL2 9
Z2 10
Y2 11
B2 12
A2 13
GND 14
28 C2+
27 C2-
26 VCC
25 RB1
24 RA1
23 DZ1/DE1
22 DY1
21 LB
20 ON/OFF
19 DY2
18 DZ2/DE2
17 RA2
16 RB2
15 V-
40 39 38 37 36 35 34 33 32 31
V+ 1
A1 2
B1 3
Y1 4
Z1 5
SEL1 6
SEL2 7
Z2 8
Y2 9
B2 10
30 RB1
29 RA1
28 DZ1/DE1
27 DY1
26 LB
25 ON/OFF
24 DY2
23 DZ2/DE2
22 RA2
21 RB2
11 12 13 14 15 16 17 18 19 20
FN6362 Rev 0.00
May 27, 2008
Page 2 of 26




 ISL3332
ISL3332, ISL3333
TABLE 2. ISL3332 FUNCTION TABLE
SEL1 or 2
0
INPUTS
ON/OFF
1
DE 1 or 2
N.A.
RECEIVER OUTPUTS
RA RB
ON ON
DRIVER OUTPUTS
YZ
ON ON
CHARGE PUMPS
(NOTE 1)
ON
MODE
RS-232
X
0
X
High-Z
High-Z
High-Z
High-Z
OFF
Shutdown
1
1
0
ON
High-Z *
High-Z
High-Z
OFF
RS-485
1
1
1
ON High-Z * ON
ON
OFF
RS-485
NOTE:
1. Charge pumps are off if SEL1 = SEL2 = 1, or if ON/OFF = 0. If ON = 1, and either port is programmed for RS-232 mode, then the charge pumps
are on.
ISL3332 Truth Tables (FOR EACH PORT)
RS-232 TRANSMITTING MODE
INPUTS
OUTPUTS
SEL1 or 2 ON/OFF
01
DY
0
DZ
0
Y
1
Z
1
0 10110
0 11001
0 11100
0 0 X X High-Z High-Z
RS-485 TRANSMITTING MODE
INPUTS
OUTPUTS
SEL1 or 2 ON/OFF DE1 or 2
1 11
DY
0
Y
1
Z
0
1 11101
1 1 0 X High-Z High-Z
1 0 X X High-Z High-Z
RS-232 RECEIVING MODE
INPUTS
OUTPUT
SEL1 or 2 ON/OFF
01
A
0
B RA RB
011
0 10110
0 11001
0 11100
0
1
Open
Open
1
1
0 0 X X High-Z High-Z
RS-485 RECEIVING MODE
INPUTS
OUTPUT
SEL1 or 2 ON/OFF
11
B-A
-40mV
RA RB *
1 High-Z
11
-200mV
0 High-Z
1 1 Open or Shorted together 1 High-Z
10
X High-Z High-Z
* Internally pulled high through a 40kresistor.
FN6362 Rev 0.00
May 27, 2008
Page 3 of 26



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